VIENNA, AUSTRIA - APRIL 16: Charles (R) and Diana, Princess of Wales, attend a state reception during their official visit to Austria on April 16, 1986. (Photo by Georges De Keerle/Getty Images)
VIENNA, AUSTRIA - APRIL 16: Charles (R) and Diana, Princess of Wales, attend a state reception during their official visit to Austria on April 16, 1986. (Photo by Georges De Keerle/Getty Images)